Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quem ganhou a simples masculina quando Petya Nedelcheva e Diana Dimova ganharam a dupla feminina e Vladimir Metodiev e Krasimir Yankov ganharam a dupla masculina?
 ###Tabelas: CREATE TABLE men's_tournament (men's_tournament_id AUTO_INCREMENT PRIMARY KEY, Name v t e VARCHAR, Pos. VARCHAR, Height VARCHAR, Weight VARCHAR, Club VARCHAR) CREATE TABLE 2000_version (2000_version_id AUTO_INCREMENT PRIMARY KEY, Cast VARCHAR, 1951 ( BBC ) VARCHAR, 1957 (BBC) VARCHAR, 1968 (BBC) VARCHAR, 1970 (film) VARCHAR, 2000 ( Carlton Television ) VARCHAR) CREATE TABLE tallest_buildings_under_construction (tallest_buildings_under_construction_id AUTO_INCREMENT PRIMARY KEY, Rank INT, Name VARCHAR, City VARCHAR, Height VARCHAR, Floors INT) CREATE TABLE past_winners (past_winners_id AUTO_INCREMENT PRIMARY KEY, Year INT, Men's singles VARCHAR, Women's singles VARCHAR, Men's doubles VARCHAR, Women's doubles VARCHAR, Mixed doubles VARCHAR) CREATE TABLE subsidiaries_and_associates (subsidiaries_and_associates_id AUTO_INCREMENT PRIMARY KEY, Company VARCHAR, Type VARCHAR, Principal activities VARCHAR, Incorporated in VARCHAR, Group's Equity Shareholding (10 March 2010) VARCHAR)  
SELECT Men's singles FROM past_winners WHERE Women's doubles = petya nedelcheva diana dimova AND Men's doubles = vladimir metodiev krasimir yankov